From patchwork Fri Jan 7 22:56:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 530669 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A3C1C433EF for ; Fri, 7 Jan 2022 22:58:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230271AbiAGW6m (ORCPT ); Fri, 7 Jan 2022 17:58:42 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:35326 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229628AbiAGW6l (ORCPT ); Fri, 7 Jan 2022 17:58:41 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 613EB60F8D; Fri, 7 Jan 2022 22:58:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CEB52C36AE9; Fri, 7 Jan 2022 22:58:40 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1n5yBz-001gzA-Vt; Fri, 07 Jan 2022 17:58:39 -0500 Message-ID: <20220107225839.823118570@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 07 Jan 2022 17:56:56 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , Tom Zanussi , stable@vger.kernel.org Subject: [PATCH 1/2] tracing: Have syscall trace events use trace_event_buffer_lock_reserve() References: <20220107225655.647376947@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Steven Rostedt Currently, the syscall trace events call trace_buffer_lock_reserve() directly, which means that it misses out on some of the filtering optimizations provided by the helper function trace_event_buffer_lock_reserve(). Have the syscall trace events call that instead, as it was missed when adding the update to use the temp buffer when filtering. Cc: stable@vger.kernel.org Fixes: 0fc1b09ff1ff4 ("tracing: Use temp buffer when filtering events") Signed-off-by: Steven Rostedt Reviewed-by: Masami Hiramatsu --- kernel/trace/trace_syscalls.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 8bfcd3b09422..f755bde42fd0 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -323,8 +323,7 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id) trace_ctx = tracing_gen_ctx(); - buffer = tr->array_buffer.buffer; - event = trace_buffer_lock_reserve(buffer, + event = trace_event_buffer_lock_reserve(&buffer, trace_file, sys_data->enter_event->event.type, size, trace_ctx); if (!event) return; @@ -367,8 +366,7 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret) trace_ctx = tracing_gen_ctx(); - buffer = tr->array_buffer.buffer; - event = trace_buffer_lock_reserve(buffer, + event = trace_event_buffer_lock_reserve(&buffer, trace_file, sys_data->exit_event->event.type, sizeof(*entry), trace_ctx); if (!event)